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How to select the best temperature
control auxiliary?
Ta < Td
Ta < Td
Ta < Td
Ventilation devices
Fans and outlet grilles
Air-air exchangers
System
Airing
Ventilating
Air-air exchanger
Natural convection causes the temperature
to drop inside the enclosure. Simple
solutions for this case include installing
grilles (without filter) or lifting the top.
Fans with filters are designed to evacuate a
large amount of heat economically.
Air-air exchangers are equipped with
an aluminium exchange cassette whic
separates the internal and external air
circuits and prevents the entry of dust.
When should it be used?
This solution can only be used when
the power to be dissipated is low, in an
environment with small amounts of dust.
When larger amounts of heat need to be
evacuated in a polluted environment.
The air-air exchangers are used in hig
polluted environments or when it is
necessary to evacuate large amounts
heat while guaranteeing the independ
of the internal and external air circuits.
Ta: Ambient temperature
Td: Desired temperature
The internal and external
air circuits must
be independent.
Advantages
●
Economic solution.
●
No maintenance.
●
Quick and easy installation.
●
Economic solution.
●
Easy maintenance.
●
Quick and easy installation.
●
Even temperature inside the enclosure.
●
High protection rating: IP 54 or IP 55.
●
The internal and external air circuits
independent.
●
Easy maintenance.
●
High protection rating: IP 54.
Disadvantages
●
Small amount of heat evacuated.
●
Reduction of the IP protection rating.
●
Entry of dust particles.
●
The temperature inside the enclosure
is always higher than the external
temperature.
●
The internal and external air circuits are
in contact.
●
Maintenance required: filter replacement.
●
The temperature inside the enclosu
is always higher than the external
temperature.
Solutions
YES
NO
NO
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